Peel-away sheath assembly

A technology of assembly and stripping wire, used in catheters, blood pumps, coatings, etc., can solve problems such as kink resistance and flexibility limitation, and achieve the effect of improving kink resistance and reducing the amount of force

Pending Publication Date: 2021-03-19
ABIOMED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polymer reinforcements are sometimes used as structural reinforcements, but due to their inherent material properties, their ability to improve kink resistance and flexibility is limited

Method used

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  • Peel-away sheath assembly
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Examples

Experimental program
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Embodiment Construction

[0078]Certain exemplary embodiments will be described in order to provide an overall understanding of the systems, methods, and devices disclosed herein. Although the embodiments and features described herein are described specifically for use with a percutaneous heart pump system, it should be understood that these teachings can be adapted and applied to other mechanical circulatory support devices and other types of medical devices, such as electrophysiology Research and Catheter Ablation Devices, Angioplasty and Stent Devices, Angiography Catheters, Peripherally Inserted Central Venous Catheters, Midline Catheters, Peripheral Catheters, IVC Filters, Abdominal Aortic Aneurysm Treatment Devices, Thrombectomy Devices, TAVR Delivery systems, cardiac therapy and cardiac assist devices, including balloon pumps, cardiac assist devices implanted using surgical incisions, and any other venous or arterial based endoluminal catheters and devices.

[0079] The systems, methods, and dev...

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Abstract

Systems and methods for a multi-layered peel-away sheath assembly for insertion of a blood pump including a sheath hub and a sheath body having a proximal end that is connected to the sheath hub, anda distal end. The sheath body comprises multiple layers including a reinforcing layer. The reinforcing layer improves flexibility and kink resistance of the assembly The reinforcing layer can compriseLCP, PEBAX, stainless steel, Nitinol, or Kevlar. The reinforcing layer may be a laser-cut hypotube or a braided or coiled filament. The first layer material and the third layer material are thermoplastics, including PEBAX or TPU. The reinforcing layer has at least one discontinuity, which is aligned with peel-away lines in the sheath body to allow an operator to peel-away the assembly. The peel-away lines are formed of inner, outer notches, or both. The sheath hub also includes a discontinuity to allow the sheath hub to peel-away.

Description

[0001] related application [0002] This application claims the benefit of priority to U.S. Provisional Application Serial No. 62 / 672,212, filed May 16, 2018, the contents of which are incorporated as Appendix A to this application, and to U.S. Provisional Application, filed February 7, 2019 The benefit of priority of Serial No. 62 / 802,454, the contents of which are incorporated as Appendix B of this application. Background technique [0003] After a patient suffers a heart attack, a mechanical circulatory support device is often introduced to support the function of the heart. In some adaptations, a heart pump is inserted through the patient's vasculature and into the heart to help relieve the heart. The pump can be configured to draw blood from the left ventricle of the heart and expel it into the aorta; or to draw blood from the inferior vena cava (IVC), bypassing the right atrium and ventricle, and expel blood into the pulmonary artery. Some systems operate the pump with...

Claims

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Application Information

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IPC IPC(8): A61M60/135A61M60/30A61M60/80A61M60/857
CPCA61M25/005A61M25/0668A61M25/0009A61M25/0012A61M60/857A61M60/13A61M60/165A61M25/0045A61M2025/0675A61M60/135A61M39/02A61M2025/0188A61M2039/1061A61M25/0097
Inventor C·N·科库奇G·范图奇D·卡拉布里斯C·刘J·莫德里斯
Owner ABIOMED
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